South Korea's foreign exchange reserves surpassed 402-billion U.S. dollars in July, bolstering the country's financial stability.<br /> The Bank of Korea said Friday the country's reserves grew nearly 2-point-2-billion dollars from June to 402-point-5-billion dollars last month. <br />The central bank said the surge was largely due to the devaluation of the U.S. dollar that in turn led to the BOK's gains in assets held in foreign currencies.<br />The reserves surpassed the 400-billion dollar mark for the first time in June this year. <br />